Expandable liquid infusion device
First Claim
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1. A temperature activated medication infusion pump attachable to an infused medication recipient comprising:
- means for attaching said infusion pump to said a patient;
a first container having a central hollow portion containing a temperature expandable fluid, said expandable fluid being expandable through a selected range of temperatures;
a second container having a hollow central portion containing a liquid medication;
means for attaching said first container to said second container, whereby when said first container expands pressure is applied to said second container and the liquid medication therein;
a tube communicating with the hollow portion of said second container with a distal end extending therefrom;
a pressure control means associated with said second container for controlling the pressure of said liquid medication flowing from said second container through said tube, said pressure control means connected to the distal end of said tube;
valve means for metering the volume of said liquid medication flowing through said tube; and
means for attaching a device for infusing said liquid mediation from said tube into said patent.
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Abstract
This invention is directed to a temperature activated infusion device for delivering a specific quantity of medication to a recipient patent. The delivery is accomplished by the use of a sealed pouch or container of an temperature expandable fluid which applies pressure to a adjacent second pouch or container of liquid medication. A medication delivery pressure regulator and fluid metering valve associated with the output of the liquid medication from the pouch or container insure proper pressure and volume of medication to the recipient patient.
20 Citations
23 Claims
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1. A temperature activated medication infusion pump attachable to an infused medication recipient comprising:
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means for attaching said infusion pump to said a patient; a first container having a central hollow portion containing a temperature expandable fluid, said expandable fluid being expandable through a selected range of temperatures; a second container having a hollow central portion containing a liquid medication; means for attaching said first container to said second container, whereby when said first container expands pressure is applied to said second container and the liquid medication therein; a tube communicating with the hollow portion of said second container with a distal end extending therefrom; a pressure control means associated with said second container for controlling the pressure of said liquid medication flowing from said second container through said tube, said pressure control means connected to the distal end of said tube; valve means for metering the volume of said liquid medication flowing through said tube; and means for attaching a device for infusing said liquid mediation from said tube into said patent. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A temperature activated medication infusion pump comprising:
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a first container having a central hollow portion containing a temperature expandable fluid, said expandable fluid being expandable through a selected range of temperatures; a second container having a hollow central portion containing a liquid medication; means for attaching said first container to said second container, whereby when said first container expands pressure is applied to said second container and the liquid medication therein; a tube communicating with the hollow portion of said second container with a distal end extending therefrom; pressure control means for controlling the pressure of said liquid medication flowing from said second container through said tube; means for metering the volume of said liquid medication flowing through said tube; and means for attaching a device for infusing said liquid mediation from said tube into said patent.
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21. A temperature activated medication infusion pump comprising:
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a first container having a central hollow portion containing a temperature expandable fluid, said expandable fluid being expandable through a selected range of temperatures; a second container having a hollow central portion containing a liquid medication; means for attaching said first container to said second container, whereby when said first container expands pressure is applied to said second container and the liquid medication therein; a tube communicating with the hollow portion of said second container with a distal end extending therefrom; means for metering the volume of said liquid medication flowing through said tube; and means for attaching a device for infusing said liquid mediation from said tube into said patent.
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22. A temperature activated medication infusion pump comprising:
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a first container having a central hollow portion containing a temperature expandable fluid, said expandable fluid being expandable through a selected range of temperatures; a second container having a hollow central portion containing a liquid medication; means for attaching said first container to said second container, whereby when said first container expands pressure is applied to said second container and the liquid medication therein; a tube communicating with the hollow portion of said second container with a distal end extending therefrom; and means for attaching a device for infusing said liquid mediation from said tube into said patent.
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23. A temperature activated medication infusion pump comprising:
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a first container having a central hollow portion containing a temperature expandable fluid, said expandable fluid being expandable through a selected range of temperatures; a second container having a hollow central portion containing a liquid medication; and a tube communicating with the hollow portion of said second container with a distal end extending therefrom, whereby when said first container expands pressure is applied to said second container and the liquid medication therein forcing liquid medication from said tube.
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Specification